10212121202 has 8 divisors (see below), whose sum is σ = 15453741276. Its totient is φ = 5060874112.

The previous prime is 10212121201. The next prime is 10212121217. The reversal of 10212121202 is 20212121201.

It can be written as a sum of positive squares in 2 ways, for example, as 9547048681 + 665072521 = 97709^2 + 25789^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (10212121201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22592963 + ... + 22593414.

Almost surely, 2^10212121202 is an apocalyptic number.

10212121202 is a deficient number, since it is larger than the sum of its proper divisors (5241620074).

10212121202 is a wasteful number, since it uses less digits than its factorization.

10212121202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45186492.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10212121202 its reverse (20212121201), we get a palindrome (30424242403).

Subtracting 10212121202 from its reverse (20212121201), we obtain a palindrome (9999999999).

It can be divided in two parts, 10 and 212121202, that added together give a palindrome (212121212).

The spelling of 10212121202 in words is "ten billion, two hundred twelve million, one hundred twenty-one thousand, two hundred two".